Freshsales CRM - A full-fledged CRM for high-velocity sales teams.
Software Product Management Stack - Resources & tools to help you manage your software product
ROCKSTARS.WORK - HR, CRM & project management cloud SaaS system
The Product Management guide - A book on how to create and ship products that people love
shipit - shipit is a product roadmap and product planning tool that comes with an integrated, battle-proven approach to planning product.
Product Management Exercises - A repository of product manager job interview exercises